CN203821294U - Model test device for simulating reservoir earth dam seepage damage developing process - Google Patents
Model test device for simulating reservoir earth dam seepage damage developing process Download PDFInfo
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- CN203821294U CN203821294U CN201420071282.XU CN201420071282U CN203821294U CN 203821294 U CN203821294 U CN 203821294U CN 201420071282 U CN201420071282 U CN 201420071282U CN 203821294 U CN203821294 U CN 203821294U
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Abstract
The utility model discloses a model test device for simulating a reservoir earth dam seepage damage developing process. The device comprises a box type test groove, a head changing water supply device, an axial pressurizing device and a data collecting device, wherein a spiral water inlet is formed in the upstream of the left side of the box type test groove and is connected with a water outlet of the head changing water supply device on the left side through a water-inlet rubber hose; the data collecting device comprises liquid level sensors, a data acquiring and transmitting element, a flow meter and a data terminal; the liquid level sensors are arranged at multiple different positions on the outer side surface of the box type test groove; an overflow hole is formed in the bottom of the right side of the box type test groove and is connected with the flow meter through a water-outlet rubber hose; the axial pressurizing device is arranged on the upper part of the box type test groove. The model test device is suitable for studying dam body project seepage and permeation damage, and can also be applied to teaching and scientific research of geotechnical engineering and hydraulic engineering subjects.
Description
Technical field
The utility model belongs to the technical field of hydraulic engineering physical experiments, in particular to a kind of model test apparatus of simulating the evolution of reservoir Filtration in An Earthen Dam destruction.
Background technology
On saturated aqueous stratum, owing to safeguarding that the bad or water-stopping structure of the stagnant water effect of wall lost efficacy, cause and descend in large quantities water-bound unstability, cause a large amount of underground water to carry the grains of sand secretly and pour in the scope of operation, cause supporting and protection structure unstability to be called seepage erosion.Because dam body and the dam foundation of earth dam generally all has certain water permeability, therefore, under the effect of water pressure, infiltration phenomenon is inevitable.Exceptional leakage can cause much harm to earth dam: loss water retention capacity even causes the dam cannot retaining; Phreatic line is raised, made downstream dam slope careless and sloppy, even cause landslide accident; When the infiltration gradient of seepage flow is greater than critical gradient, earth dam jeopardizes earth dam safety by the distortion of generation seepage flow.Wherein the seepage deformation of earth dam is the one of the main reasons of earth dam generation malicious event, according to data at home and abroad statistics, due to what seepage deformation damaged accident, accounts for the more than 40% of whole malicious events.Therefore, for the seepage erosion problem of dykes and dams, absolutely not can adopt a casual attitude, formation and the evolution of research Reservoir Earth Dam seepage erosion, significant with the corresponding prophylactico-therapeutic measures of proposition to prevention seepage erosion.
At present, about the evolution simulation of Reservoir Earth Dam seepage erosion, be mostly confined to the scope of the seepage erosion simulation of certain relative compaction soil sample, thereby the seepage flow situation cannot consider that soil sample is subject to axial compression time, therefore be difficult to the formation and development process of best explain Filtration in An Earthen Dam, can not meet the requirement of Reservoir Earth Dam engineering seepage erosion research.
Utility model content
In order to overcome the above-mentioned defect of existing Reservoir Earth Dam seepage erosion evolution model test apparatus, the purpose of this utility model is to provide a kind of more rational Reservoir Earth Dam seepage erosion evolution model test apparatus.
For achieving the above object, the utility model provides a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating, comprise box test flume, varying head water supply installation, axial pressurizing device and transacter, described box test flume is connected with varying head water supply installation, described axial pressurizing device is arranged on the top of box test flume, and described transacter is connected with box experimental tank.
Preferably, described upstream, box test flume left side is provided with spiral water inlet, and described spiral water inlet is connected with the delivery port of the varying head water supply installation in left side by water inlet rubber hose, and the right side of described spiral water inlet is provided with porous disc; Described transacter comprises liquid level sensor, data acquisition and transfer element, flow meter and data terminal, described liquid level sensor is arranged in a plurality of diverse locations of box test flume lateral surface, described liquid level sensor is connected with data terminal by data acquisition and transfer element, and described flow meter is connected with data terminal; Described box test flume is provided with downstream porous disc in current downstream, and described bottom, box test flume right side is provided with spillway hole, and described spillway hole connects described flow meter by water outlet rubber hose; Described axial pressurizing device is arranged on the top of box test flume.
Preferably, described varying head water supply installation comprises water intaking valve, water inlet pipe, plastic water pipe, overfall, delivery port, sister block, hawser, long plank and movable support, described sister block is fixed on movable support, described long plank is provided with scale, and described delivery port is connected with the spiral water inlet of box test flume through water inlet rubber hose.
Preferably, described axial pressurizing device comprises Pressure Actuated Device, load output device, load measurement device, vertical displacement measuring device, removable cover and fixed support, described removable cover is arranged on described box test flume top with longitudinal movement, has installed for measuring the vertical displacement measuring device of soil body sample vertical displacement described removable cover top, described vertical displacement measuring device is connected with load measurement device, described load measurement device is connected with the output of load output device, described fixed support is fixedly connected with box test flume, described Pressure Actuated Device is fixed on the medium position of described support bracket fastened beam, described Pressure Actuated Device is connected with load output device.
Preferably, described data terminal is computer processor, and described data acquisition and transfer element are analog-digital converter (A-D) and serial ports.
The beneficial effects of the utility model:
By axial pressurizing device, soil sample is applied to axial compression, can comparatively scientifically simulate Reservoir Earth Dam and form and development, the seepage erosion of accurate reproduction Reservoir Earth Dam and development to the seepage flow under stressing conditions in disalignment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the model test apparatus of the utility model research Reservoir Earth Dam seepage erosion evolution.
Fig. 2 is the operating principle schematic diagram of the model test apparatus of the utility model research Reservoir Earth Dam seepage erosion evolution.
In Fig. 1, 1, water intaking valve, 2, water inlet pipe, 3, plastic water pipe, 4, overfall, 5, delivery port, 6, sister block, 7, hawser, 8, long plank, 9, movable support, 10, spiral water inlet, 11, water inlet rubber hose, 12, porous disc, 13, liquid level sensor, 14, data acquisition and transfer element, 15, box test flume, 16, collect mouth, 17, downstream porous disc, 18, water level control box, 19, spillway hole, 20, water outlet rubber hose, 21, flow meter, 22, data terminal, 23, Pressure Actuated Device, 24, load output device, 25, load measurement device, 26, vertical displacement measuring device, 27, removable cover, 28, fixed support.
The specific embodiment
For making object and the technical scheme of the utility model embodiment clearer, below in conjunction with the accompanying drawing of the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present utility model, rather than whole embodiment.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite without creative work, belongs to the scope that the utility model is protected.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have with the utility model under the identical meaning of the general understanding of those of ordinary skill in field.Should also be understood that such as those terms that define in general dictionary and should be understood to have the consistent meaning of meaning in the context with prior art, unless and definition as here, can not explain by idealized or too formal implication.
The implication of " inside and outside " described in the utility model refers to respect to equipment itself, in the direction of sensing equipment inside is, otherwise outside being.
When the implication of " left and right " described in the utility model refers to reader over against accompanying drawing, reader's the left side is a left side, and the right of reader is the right side.
The implication of " connection " described in the utility model can be that the direct connection between parts can be also by the indirect connection of other parts between parts.
As shown in Figure 1, simulation reservoir Filtration in An Earthen Dam of the present utility model destroys evolution model test apparatus, comprise box test flume 15, varying head water supply installation, axial compression output device, transacter, there is spiral water inlet 10 in box test flume 15 left sides, upstream, through water inlet rubber hose 11, be connected with the delivery port 5 of the varying head water supply installation in left side, there is porous disc 12 on spiral water inlet 10 right sides, box test flume 15 lateral surface diverse locations are provided with a plurality of liquid level sensors 13, there is downstream porous disc 17 in the downstream of box test flume 15, bottom, test flume right side has spillway hole 19 to connect flow meter 21 by water outlet rubber hose 20, axial compression output device is arranged at box test flume 15 tops,
Varying head water supply installation comprises water intaking valve 1, water inlet pipe 2, plastic water pipe 3, overfall 4, delivery port 5, sister block 6, hawser 7, long plank 8 and movable support 9, sister block 6 is fixed on movable support 9, on long plank 8, have scale, delivery port 5 is connected with the spiral water inlet 10 of box test flume 15 through water inlet rubber hose 11.
Axial compression output device comprises Pressure Actuated Device 23, load output device 24, load measurement device 25, vertical displacement measuring device 26, removable cover 27 and fixed support 28, the removable cover 27 that can vertically move is at box test flume 15 tops, on removable cover 27, installed for measuring the vertical displacement measuring device 26 of soil body sample vertical displacement, vertical displacement measuring device is connected with load measurement device 25, load measurement device 25 is connected with the output of load output device 24, fixed support 28 is fixedly connected with box test flume 15, and the middle part of beam is fixed wtih Pressure Actuated Device 23 and is connected with load output device 24.
The operating principle that the utility model simulation reservoir Filtration in An Earthen Dam destroys evolution model test apparatus is as follows:
As depicted in figs. 1 and 2, in box test flume 15, fill soil sample, layering filling, every layer has been loaded and has just carried out compacting, exhaust and saturated processing, in top cover, removable cover 27, Pressure Actuated Device 23 and load measurement device 25 are adjusted to the position that is applicable to loading, then soil body sample is applied to certain vertical load; Upstream utilizes varying head water supply installation to increase gradually head, simulate the osmosis of Reservoir Earth Dam under different heads during retaining, and open the rubber stopper of an overfall 4, under the effect of head difference, current, through porous disc 12, form seepage field in the soil sample of box test flume 15; Liquid level sensor 14 gathers the head data in each moment of the box test flume 15 interior diverse location soil bodys; Flow meter 21 Real-Time Monitorings also record the flow in whole seepage flow development, deformation process, note observing, record the experimental phenomena of overfall 4 etc., until soil sample generation seepage erosion, test stops; To the axial compression applying, record the data analysis such as head, flow, obtain corresponding seepage field, so that evolution characterizes to Reservoir Earth Dam seepage erosion.
The seepage field that the utility model can be simulated dam body engineering changes, formation and development that more closing to reality ground reproduces the seepage failure of dam body engineering.By changing test flume top static(al) loading system, be applied to the size of even axial compression in test soil sample, can simulate the dam body seepage erosion situation being subject under different axial compressions; By change, test soil sample type, can simulate the seepage erosion phenomenon of all kinds of earth dams in the Reservoir Earth Dam engineerings such as even dam body, heterogeneous body dam body; By applying multi-form head difference, can simulate the seepage erosion evolution under the various hydraulics of Reservoir Earth Dam.It is applicable to the research of dam body engineering seepage flow and seepage failure, for the constructions such as actual dam body engineering, design etc. provide guidance, also can be used as geotechnical engineering and the teaching of hydraulic engineering subject and the use of scientific experiment.
These are only embodiment of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (9)
1. simulate the model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution for one kind, it is characterized in that, comprise box test flume (15), varying head water supply installation, axial pressurizing device and transacter, described box test flume (15) is connected with varying head water supply installation, described axial pressurizing device is arranged on the top of box test flume (15), and described transacter is connected with box experimental tank (15).
2. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 1, it is characterized in that, the top of one side of described box test flume (15) is provided with spiral water inlet (10), and described spiral water inlet (10) is connected with the delivery port (5) of described varying head water supply installation by water inlet rubber hose (11).
3. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 2, it is characterized in that, in described box test flume (15) inside, be provided with porous disc (12), described porous disc (12) is located at the current downstream position of spiral water inlet (10).
4. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 3, it is characterized in that, described transacter comprises liquid level sensor (13), data acquisition and transfer element (14), flow meter (21) and data terminal (22), described liquid level sensor (13) is arranged in a plurality of diverse locations of box test flume (15) lateral surface, described liquid level sensor (13) is connected with data terminal (22) by data acquisition and transfer element (14), described flow meter (21) is connected with data terminal (22).
5. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 4, it is characterized in that, the bottom of the opposite side of described box test flume (15) is provided with spillway hole (19), and described spillway hole (19) is connected to described flow meter (21) by water outlet rubber hose (20).
6. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 5, it is characterized in that, inside at described box test flume (15) is provided with downstream porous disc (17), and described downstream porous disc (17) is positioned at the current upstream position of spout hole (19).
7. according to a kind of model test apparatus of simulating the evolution of reservoir Filtration in An Earthen Dam destruction described in claim 2 or 4, it is characterized in that, described varying head water supply installation comprises water intaking valve (1), water inlet pipe (2), plastic water pipe (3), overfall (4), delivery port (5), sister block (6), hawser (7), long plank (8) and movable support (9), described sister block (6) is fixed on movable support (9), described long plank (8) is provided with scale, described delivery port (5) is connected with the spiral water inlet (10) of box test flume (15) through water inlet rubber hose (11).
8. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 7, it is characterized in that, described axial pressurizing device comprises Pressure Actuated Device (23), load output device (24), load measurement device (25), vertical displacement measuring device (26), removable cover (27) and fixed support (28), described removable cover (27) is arranged on described box test flume (15) top with longitudinal movement, the vertical displacement measuring device (26) for measuring the vertical displacement of soil body sample has been installed in described removable cover (27) top, described vertical displacement measuring device (26) is connected with load measurement device (25), described load measurement device (25) is connected with the output of load output device (24), described fixed support (28) is fixedly connected with box test flume (15), described Pressure Actuated Device (23) is fixed on the medium position of the beam of described fixed support (28), described Pressure Actuated Device (23) is connected with load output device (24).
9. a kind of model test apparatus that reservoir Filtration in An Earthen Dam destroys evolution of simulating according to claim 4, it is characterized in that, described data terminal (22) is computer processor, and described data acquisition and transfer element (14) are analog-digital converter (A-D) and serial ports.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420071282.XU CN203821294U (en) | 2014-02-19 | 2014-02-19 | Model test device for simulating reservoir earth dam seepage damage developing process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420071282.XU CN203821294U (en) | 2014-02-19 | 2014-02-19 | Model test device for simulating reservoir earth dam seepage damage developing process |
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| CN203821294U true CN203821294U (en) | 2014-09-10 |
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| CN201420071282.XU Expired - Fee Related CN203821294U (en) | 2014-02-19 | 2014-02-19 | Model test device for simulating reservoir earth dam seepage damage developing process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282214A (en) * | 2014-10-29 | 2015-01-14 | 安徽理工大学 | Pipeline flow tracer test comprehensive device of pressure bearing karst aquifer system |
| CN105040633A (en) * | 2015-07-13 | 2015-11-11 | 昆明理工大学 | Installing method for water pressure sensor in dam body-reservoir water coupling dynamic model test |
| CN107505448A (en) * | 2017-09-12 | 2017-12-22 | 同济大学 | Seepage inflow erosion model equipment, system and test method caused by underground utilities breakage |
| CN110907329A (en) * | 2019-12-04 | 2020-03-24 | 重庆大学 | Large-scale corrosion test system and test method thereof |
| CN111238932A (en) * | 2020-01-15 | 2020-06-05 | 中国地质大学（武汉） | Testing device and testing method for researching drilling deformation characteristics of gravel soil formed micro pile |
-
2014
- 2014-02-19 CN CN201420071282.XU patent/CN203821294U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282214A (en) * | 2014-10-29 | 2015-01-14 | 安徽理工大学 | Pipeline flow tracer test comprehensive device of pressure bearing karst aquifer system |
| CN105040633A (en) * | 2015-07-13 | 2015-11-11 | 昆明理工大学 | Installing method for water pressure sensor in dam body-reservoir water coupling dynamic model test |
| CN107505448A (en) * | 2017-09-12 | 2017-12-22 | 同济大学 | Seepage inflow erosion model equipment, system and test method caused by underground utilities breakage |
| CN107505448B (en) * | 2017-09-12 | 2020-08-14 | 同济大学 | Seepage erosion model device, system and test method caused by underground pipeline damage |
| CN110907329A (en) * | 2019-12-04 | 2020-03-24 | 重庆大学 | Large-scale corrosion test system and test method thereof |
| CN111238932A (en) * | 2020-01-15 | 2020-06-05 | 中国地质大学（武汉） | Testing device and testing method for researching drilling deformation characteristics of gravel soil formed micro pile |
| CN111238932B (en) * | 2020-01-15 | 2020-11-27 | 中国地质大学（武汉） | Testing device and testing method for researching drilling deformation characteristics of gravel soil formed micro pile |
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Granted publication date: 20140910 Termination date: 20170219 |
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